CN206379594U - Headphone adapter cable for Type-C interface of mobile phone - Google Patents

Abstract

The utility model discloses an earphone patch cord applied to a Type-C interface of a mobile phone, which comprises a Type-C plug matched with the Type-C interface on the mobile phone, a female socket for plugging an earphone and a connecting cord connected between the Type-C plug and the female socket of the earphone, wherein a PCB (printed circuit board) is arranged in the Type-C plug; a welding wire part is arranged in the female seat; the connecting wire comprises an insulating sheath, a left sound channel wire, a right sound channel wire, a grounding wire, a microphone wire and a shielding layer which is used as an antenna and has a shielding effect, wherein the left sound channel wire, the right sound channel wire, the grounding wire and the microphone wire are all wrapped inside the shielding layer, the insulating sheath is wrapped outside the shielding layer, and the left sound channel wire, the right sound channel wire, the grounding wire, the microphone wire and the shielding layer are electrically connected between the PCB and the welding wire part. Therefore, the shielding layer which can serve as an earphone antenna and has a shielding function is arranged in the earphone patch cord, so that the earphone patch cord can meet the transmission requirement of audio signals, can receive television signals and improves the use convenience.

Description

Headphone adapter cable for Type-C interface of mobile phone

technical field

The utility model relates to the technology in the communication field, in particular to an earphone adapter cable applied to a Type-C interface of a mobile phone.

Background technique

As the most common accessory product for mobile phones, earphones are indispensable, and even for some users, earphones have become a part of their lives. However, the currently widely used earphones on the market are basically analog earphones with a 3.5mm audio interface. The C interface is used as the headphone jack, and acts as the charging and data transmission interface of the mobile phone. When using the headset, the user uses a headset adapter cable with a USB Type-C plug to connect to the USB Type-C interface for use, but the existing headset The adapter cable does not contain an antenna structure, which leads to the inability to act as an antenna even when the earphone is plugged in, which brings a lot of inconvenience to users. In order to solve this problem, some mobile phone manufacturers set up a telescopic antenna on the mobile phone, but this will make the mobile phone The structure tends to be complicated and the production cost is high. Therefore, this type of headphone adapter cable should be improved to enable it to function as an antenna.

Utility model content

In view of this, the utility model aims at the deficiencies in the prior art, and its main purpose is to provide an earphone adapter cable applied to the Type-C interface of a mobile phone, which can serve as an earphone antenna and has a shielding function by setting it in the earphone adapter cable The shielding layer makes the headphone adapter cable not only meet the transmission requirements of audio signals, but also accept TV signals, which improves the convenience of use.

In order to achieve the above object, the utility model adopts the following technical solutions:

An earphone adapter cable applied to the Type-C interface of a mobile phone, including a Type-C plug for matching with the Type-C interface on the mobile phone, a female seat for plugging in an earphone, and a connection between the Type-C plug and the female seat The connecting line between the Type-C plug is provided with a PCB board; the female seat is provided with a welding part; the connecting line includes an insulation skin, a left channel line, a right channel line, a grounding line, a microphone line and As a shielding layer with shielding effect as an antenna, the left sound channel wire, the right sound channel wire, the ground wire and the microphone wire are all covered inside the shielding layer, the insulating skin is wrapped outside the shielding layer, and the left sound channel wire, the right channel wire, the ground wire, the microphone wire and the shielding layer are electrically connected between the above-mentioned PCB board and the welding wire part.

As a preferred solution: the left audio channel wire, the right audio channel wire, the ground wire, and the microphone wire are covered with a tinfoil layer, and the above-mentioned shielding layer is wrapped outside the tinfoil layer.

As a preferred solution: the surface of the PCB board is provided with solder joints for left and right channel wires, and solder joints for microphone wires. One end of the channel line is welded to the solder joint of the right channel line, one end of the microphone line is welded to the solder joint of the microphone line; the ground wire solder joint and the shielding layer solder joint are arranged on the lower surface of the PCB, and one end of the ground wire is welded to the ground wire solder joint. One end of the shielding layer is welded to the soldering point of the shielding layer.

As a preferred solution: the welding wire part includes a first welding column, a second welding column, a third welding column and a fourth welding column, the other end of the left channel wire is welded on the first welding column, and the right channel The other end of the wire is welded to the second welding column, the other end of the microphone line is welded to the third welding column, and the ground wire and the shielding layer are wound together and welded to the fourth welding column.

As a preferred solution: a plurality of magnetic beads are arranged on the upper surface of the PCB.

As a preferred solution: a magnetic bead is respectively connected to the left sound channel line, the right sound channel line and the microphone line.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that by setting a shielding layer in the earphone adapter cable, the shielding layer not only acts as an earphone antenna but also has a shielding function. Therefore, the headphone adapter cable can not only meet the transmission requirements of audio signals, but also accept TV signals, which makes up for the defect that the traditional earphone adapter cable cannot be used as an antenna; thus, when the mobile phone only has a Type-C interface, there is no need to set The TV signal can be received by pulling the rod antenna, which improves the convenience of use.

In order to more clearly illustrate the structural features and functions of the utility model, it will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of the adapter wire of the present invention;

Figure 2 is a schematic diagram of the connection between the connecting wire and the female base of the utility model;

Figure 3 is a schematic diagram of the connection between the connecting line of the present invention and the upper surface of the PCB;

Figure 4 is a schematic diagram of the connection between the connecting line of the present invention and the lower surface of the PCB board;

Fig. 5 is a schematic cross-sectional view of the connecting wire of the present invention.

Explanation of the accompanying drawings:

10. Type-C plug 11. PCB board

111. Solder spot for left audio channel line 112. Solder spot for right audio channel line

113. Microphone wire solder joints 114. Magnetic beads

115. Solder spot of ground wire 116. Solder spot of shielding layer

20. Female seat 21. Welding wire part

211, the first welding column 212, the second welding column

213, the third welding column 214, the fourth welding column

30. Connecting wire 31. Insulation

32. Left channel cable 33. Right channel cable

34. Ground wire 35. Microphone wire

36. Tin foil layer 37. Shielding layer.

detailed description

As shown in Figures 1 to 5, the utility model is an earphone adapter cable applied to the Type-C interface of a mobile phone, including a Type-C plug 10 for matching with the Type-C interface on the mobile phone, and a plug for connecting the earphone. The female seat 20 and the connecting wire 30 connected between the Type-C plug 10 and the female seat 20, wherein:

The Type-C plug 10 is provided with a PCB board 11 inside; the female base 20 is provided with a welding wire part 21; the connecting wire 30 includes an insulating skin 31, a left channel line 32, a right channel line 33, and a grounding line 34 , microphone line 35, tinfoil layer 36 and shielding layer 37 as antenna and shielding effect, the left channel line 32, right channel line 33, grounding line 34 and microphone line 35 are all coated in the tinfoil layer 36, The shielding layer 37 is wrapped on the outside of the tinfoil layer 36, the insulating skin 31 is wrapped on the outside of the shielding layer 37, and the left channel line 32, the right channel line 33, the grounding line 34, the microphone line 35 and the shielding layer 37 are electrically connected. It is connected between the above-mentioned PCB board 11 and the welding wire part 21 .

The connection distribution of the connecting wire 30 with the PCB board 11 and the welding wire part 21 is as follows:

On the upper surface of the PCB board 11 are provided with a left channel line soldering point 111, a right channel line soldering point 112, a microphone line soldering point 113 and three magnetic beads 114, and one end of the left channel line 32 is welded to the left channel line soldering point. At point 111, one end of the right channel line 33 is welded to the right channel line solder joint 112, and the microphone line 35 is welded to the microphone line solder joint 113; the lower surface of the PCB 11 is provided with a ground wire solder joint 115 and a shielding layer solder joint 116, one end of the grounding wire 34 is welded on the grounding wire solder point 115, and one end of the shielding layer 37 is welded on the shielding layer soldering point 116; The bead 114, the magnetic bead 114 can absorb the high-frequency interference signal on the line where it is located, and improve the stability of signal transmission;

The welding line part 21 includes a first welding column 211, a second welding column 212, a third welding column 213 and a fourth welding column 214. The other end of the left channel line 32 is welded on the first welding column 211, and the right channel The other end of the wire 33 is welded to the second welding column 212 , the other end of the microphone wire 35 is welded to the third welding column 213 , and the ground wire 34 and the shielding layer 37 are wound together and welded to the fourth welding column 214 .

The key point of the design of this utility model is that by setting a shielding layer in the earphone adapter cable, the shielding layer not only acts as an earphone antenna but also has a shielding function, so that the earphone adapter cable can not only meet the transmission requirements of audio signals, but also can accept TV signal, which makes up for the defect that the traditional headphone adapter cable cannot be used as an antenna; thus, when the mobile phone only has a Type-C interface, it can receive TV signals without setting a rod antenna, which improves the convenience of use.

The above are only preferred embodiments of the present utility model, and are not intended to limit the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and equivalent changes made to the above embodiments according to the technical essence of the present utility model Modifications still belong to the scope of the technical solution of the utility model.

Claims (6)

1. An earphone adapter cable applied to the Type-C interface of a mobile phone, characterized in that: it includes a Type-C plug for matching with the Type-C interface on the mobile phone, a female seat for plugging in the earphone, and a Type-C plug connected to the Type-C interface. The connection line between the C plug and the female seat. The Type-C plug is provided with a PCB board inside; The grounding wire, the microphone wire and the shielding layer as an antenna and has a shielding effect. The left channel wire, the right channel wire, the grounding wire and the microphone wire are all covered inside the shielding layer, and the insulation is covered outside the shielding layer , and the left audio channel wire, the right audio channel wire, the ground wire, the microphone wire and the shielding layer are electrically connected between the above-mentioned PCB board and the welding wire part. 2. The earphone adapter cable applied to the Type-C interface of a mobile phone according to claim 1, characterized in that: the left channel line, the right channel line, the grounding line, and the microphone line are covered with a tinfoil layer outside, and the above-mentioned The shielding layer is wrapped outside the tinfoil layer. 3. The earphone adapter cable applied to the Type-C interface of a mobile phone according to claim 1, characterized in that: the surface of the PCB board is provided with solder joints for the left channel line, solder joints for the right channel line and microphone wire solder joints. One end of the above-mentioned left channel line is welded to the solder point of the left channel line, one end of the right channel line is welded to the solder point of the right channel line, and one end of the microphone line is welded to the solder point of the microphone line; the lower surface of the PCB board is provided with Solder joints of the ground wire and solder joints of the shielding layer, one end of the ground wire is welded to the solder joint of the ground wire, and one end of the shielding layer is welded to the solder joint of the shield layer. 4. The headphone adapter cable applied to the Type-C interface of a mobile phone according to claim 3, characterized in that: the welding wire part includes a first welding post, a second welding post, a third welding post and a fourth welding post , the other end of the left channel cable is welded to the first welding column, the other end of the right channel cable is welded to the second welding column, the other end of the microphone cable is welded to the third welding column, and the grounding wire and the shielding layer are wound together Solder on the fourth welding post. 5. The headphone adapter cable applied to the Type-C interface of a mobile phone according to claim 1, wherein a plurality of magnetic beads are arranged on the upper surface of the PCB. 6. The headphone adapter cable applied to the Type-C interface of a mobile phone according to claim 5, wherein a magnetic bead is respectively connected to the left audio channel cable, the right audio channel cable and the microphone cable.